# The Number System

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The Number System
13
real numbers: set of rational numbers together with the set of irrational numbers (all numbers)
irrational numbers: a number that cannot be expressed as a/b, where a and b are integers and b is not equal to 0 (pi)
rational numbers: a number of the form a/b, where a and b are intergers and b is not equal to 0
integers: the set of whole numbers and their opposites (...-2,-1,0,1,2,...)
whole numbers: natural numbers, plus 0 (0,1,2,3,4,...)
natural numbers: counting numbers (1,2,3,4,....)
radical: symbol used to indicate a square root
radicand: the quantity under a radical sign
square root: one of the two equal factors of a number
perfect square: a rational number whose square root is a whole number
cube root: a number that can be raised to the third power to create another number
terminating decimal:a decimal whose digits end
repeating decimal: a decimal whose digits repeat in groups of one or more
truncate: to shorten, or cut off a number (1.2345 to 1.2)

# The Number System

Across:2. | a decimal whose digits repeat in groups of one or more | 4. | natural numbers, plus 0 (0,1,2,3,4,...) | 6. | set of rational numbers together with the set of irrational numbers (all numbers) | 8. | a number of the form a/b, where a and b are intergers and b is not equal to 0 | 9. | to shorten, or cut off a number (1.2345 to 1.2) | 11. | one of the two equal factors of a number | 12. | symbol used to indicate a square root | 13. | counting numbers (1,2,3,4,....) |
| | Down:1. | a number that cannot be expressed as a/b, where a and b are integers and b is not equal to 0 (pi) | 3. | the set of whole numbers and their opposites (...-2,-1,0,1,2,...) | 5. | a rational number whose square root is a whole number | 7. | a number that can be raised to the third power to create another number | 10. | the quantity under a radical sign |
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© 2014

PuzzleFast.com, Noncommercial Use Only

# The Number System

Across:2. | a decimal whose digits repeat in groups of one or more | 4. | natural numbers, plus 0 (0,1,2,3,4,...) | 6. | set of rational numbers together with the set of irrational numbers (all numbers) | 8. | a number of the form a/b, where a and b are intergers and b is not equal to 0 | 9. | to shorten, or cut off a number (1.2345 to 1.2) | 11. | one of the two equal factors of a number | 12. | symbol used to indicate a square root | 13. | counting numbers (1,2,3,4,....) |
| | Down:1. | a number that cannot be expressed as a/b, where a and b are integers and b is not equal to 0 (pi) | 3. | the set of whole numbers and their opposites (...-2,-1,0,1,2,...) | 5. | a rational number whose square root is a whole number | 7. | a number that can be raised to the third power to create another number | 10. | the quantity under a radical sign |
| |

© 2014

PuzzleFast.com, Noncommercial Use Only